Leningrad. Production of mineral fertilizers at the Petrochemical Plant: workshop buildings, a worker pours apatite into a bunker, a mill grinds superphosphate. The conveyor belt moves, workers load superphosphate into the car. Collective farmers of the collective farm "Kim" fertilize the fields, plow, plant potatoes. Sheep breeders of the "Sai" state farm of Feydorovsky district count and water sheep in the field, select lambs for smudge, slaughter, tribe. The shepherds' foreman Kisel lets the sheep out of the corral. Cultural and consumer services of the collective farm "Komintern" Buguruslan district: collective farmers listen to the reading student, have lunch in the field, buy goods in the shop. Children on the playground do physical exercises, wash, have lunch. Collective farmers plow on cows, sow horse seeders, tractors and harrows are working.